“I condemn the terror incident assessed to be an attack by a Syrian-origin suicide bomber,” Recep Tayyip Erdogan said.

Addressing an ambassadors’ conference in Ankara, Erdogan added: “Unfortunately we have [had] killings in this terror incident. These are Turkish nationals and foreigners. This incident showed one more time that we should be united against terror.”

Ten people were killed and 15 injured in a blast in Sultanahmet.

“The main target of the terror organizations operating in this region is Turkey because Turkey has been fighting against all of them with the same determination,” the president said.

Turkey has faced recent attacks from the far-left groups and the Daesh terrorist organization as well as a renewed terror campaign by the PKK in the southeast.